The Weather Outlook

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NMA
  • NMA
  • Advanced Member
23 April 2026 05:52:17

Thanks for the link - didn't know about deep dive. All they've got to do now is pass it on to their presenters!

Originally Posted by: fairweather 

Yes thanks again for the link. I know it exists but I find it hard to locate and remember what day it's on.

The long dry continues then. But will it be a repeat of last year. Probably not I hope.


Vale of the Great Dairies

South Dorset

Elevation 60m 197ft

DEW
  • DEW
  • Advanced Member
23 April 2026 07:41:42
Omega block in place and, typically, difficult to shift - so little change in the near future.

FAX - HP today centred 1035 mb E Scotland moving south, reinforced by more HP from Iceland and finishing on Mon 27th 1031mb E Anglia. LP on either side, in the Baltic and south of Greenland generate N-lies in the N Sea and S-lies in W Ireland to start with (probably some cloud for these areas) but by Monday 27th shifts in the position of LP and HP combine to move winds into the east for S England again, and SW-ly for N Scotland.

GFS Op - agrees with the above, and indeed almost no change in the overall pattern from Mon 27th for the week through to Mon 4th. Pressure then begins to drop, first with a weak trough affecting N Scotland, followed by a 'proper' depression 1000mb N Scotland Wed 6th, moving SE to  E Anglia still 1000mb Sat 9th, having brought some rather cold air from the NE in its tail.

ECM - a similar pattern to the above, though re-inforcements arrive from the SW, rather than the NW and move to Scotland rather than E Anglia on the 27th, with stronger E/SE-lies for S/SW England in the following week. Although the weak trough moves in on the 27th, it is not followed up by a deeper depression but instead move south to the Channel where it sets up residence from Tue 5th, along with the above NE -lies, and by Friday 8th S England is in a trough between two LPs both 995mb, Cornwall and Sweden

AIFS - London, maxima 16-19C generally but with a dip Tue 28th and (more prolonged) Tue 5th, on each occasion with a  (very) little rain. Edinburgh, maxima 11-13C, a couple of days exceeding this (Fridays 24th and 1st) but definitely cooler after the 1st, 9-10C. Small amounts of rain Mon 27th and from Mon  4th i.e. a day earlier than London

GEFS -   mean  temp and ens members starting 4 or 5C above norm with a slow decline over the next fortnight to about 2C below norm (less agreement towards the end of this period in Scotland and E England with some cold outliers). Not much rain, what there is, mostly forecast from Mon 4th onwards and only significant in NW Scotland.


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Chunky Pea
23 April 2026 19:11:27
More a gripe about the models than an outlook. But for the last few days, we were promised long spells of sunhine for the last few days, and crystal clear skies today. This is from the Harmonie hi res model for 8pm. Clear skies all round, yet, it is heavily overcast here, with just  very broken sunshine throughout the day. 

Model projection for cloud cover:

UserPostedImage

Actual satellite image. It's the same story since the start of this dry spell:

UserPostedImage

And here is what that actual model shows for here. Unbroken skies lasting until tomorrow evening, but I already know looking at the satellite sequence that this won't be the case at all. 

https://www.dmi.dk/lokation/show/IE/2964180/Galway 

Do these models actually use an actual scan of the current conditions to 'initiialise' their next run,  or do they just guess based on their own former, and often wrong, previous projections? It makes no sense why they would use the latter. 


Patrick,

East Galway, Ireland.

DEW
  • DEW
  • Advanced Member
23 April 2026 20:53:19

More a gripe about the models than an outlook. But for the last few days, we were promised long spells of sunhine for the last few days, and crystal clear skies today. This is from the Harmonie hi res model for 8pm. Clear skies all round, yet, it is heavily overcast here, with just  very broken sunshine throughout the day. [color=rgba(73, 80, 87, 0.75)]Chunky Pea;1694001[/color]

But read my previous post, first paragraph under FAX; "S-lies in W Ireland to start with (probably some cloud for these areas)"


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

DEW
  • DEW
  • Advanced Member
24 April 2026 07:33:01
FAX - current HP moving south and weakening 1024mb Brittany Sun 26th allowing cloud and maybe showers to work round NW Scotland,  and down the E Coast on Mon, but strengthening again from the north 1033mb Shetland Tue 28th with E-lies returning to the Channel.

GFS Op 0z - continues from FAX by moving the HP on to Norway 1030mb Thu 30th with SE-lies for all. Then another HP cell arises on the Atlantic with Britain briefly in a col between the two HP centres before the Atlantic HP takes over and that over Norway collapses, net result being LP into the Norwegian Sea 995mb Tue 5th with strong cold N-lies (esp for E coast). Although this LP loses its identity, pressure remains low (1010mb) over Britain to Sun 10th, looking like an 'April showers' setup.

ECM - has the same ingredients as GFS but with variations; the SE-lies on the 30th are much stronger in the SW with LP closer to Cornwall; and then the LP Tue 5th has moved in from the northwest rather than the northeast, and is positioned in the North Sea, but still drawing in cold NE-lies. It slowly fills and moves to S Norway but the NE-lies are still there as a weak feature on Sat 9th.

AIFS - London, maxima around 20C (brief dip with a little rain Tue 28th), then cooler (maxima 15C) from Mon 4th with rather more rain, and eventually (Fri 8th) down to 10C with quite a lot of rain. Edinburgh, maxima 12-15C to start with (a couple of warmer days today and Fri 1st) then a fairly steady decline from 14C Sun 3rd to 8C Thu 7th. A little rain Mon 27th, rather more and persistent from Mon 4th.

GEFS - mean temp near or a little above norm to Sun 10th, but poor agreement from ens members after Mon 4th with op run a very cold outlier and control run a fairly warm one. A little rain Tue 28th in the east, more probable and more widespread rain from Mon 4th but still not much.

Plan to do outdoor things early in the Bank Holiday weekend?


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

DEW
  • DEW
  • Advanced Member
25 April 2026 06:29:24
FAX - slack HP drifting SW-wards and allowing fronts to affect NW Scotland to day, but moving back to N Sea off E Scotland 1032mb Wed 29th with E-lies through the Channel and a front lying across N France threatening Cornwall.

GFS Op 0z - the HP above spreads out and weakens. Change comes on Tue 5th with a trough moving across Scotland to Scandinavia with strong N-lies for the east side of Britain Thu 7th. As this system fills, HP nudges towards Ireland from the west, still N-ly regime but lighter and not directly from the Arctic Mon 11th. No sign of significant rain anywhere.

ECM - like GFS but the 'weakens' prediction is more noticeable with Britain in a shallow col for the BH weekend. The col develops into a shallow trough moving slowly eastwards, much as GFS, but importing the cold air more from the NE and winds less strong.

AIFS - London, maxima 20 C to Tue 28th, dipping for a day or two before back to 20C Fri 1st; then progressive decline to 13C Sat 9th, with rain - only a little at first but measurable by the 9th. Edinburgh, maxima variable 12-15C to Sun 3rd, then settling to 10-12C; traces of rain from Fri 1st and quite a lot on Fri 8th

GEFS - mean temp above norm now and from Thu 30th to Tue 5th, then below norm, with moderately good ens agreement. Maybe some very small amounts of rain in the coming week, but rather more likely from Tue 5th, still not particularly heavy.

So maybe the fine weather will just about hang on for the BH weekend, extended by a day or so; good spring weather now but in the long term looking cool with no real sign of summer


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Devonian
25 April 2026 07:50:05
One high looks like being replaced by another after, possibly, a shower or two. Great if you are a tourist, not great if you farm.

Our weather used to be changeable, now it just grids to a halt for weeks. Lots of the weather sayings and poems of the past just don't seem to apply anymore.

johncs2016
25 April 2026 08:24:20

One high looks like being replaced by another after, possibly, a shower or two. Great if you are a tourist, not great if you farm.

Our weather used to be changeable, now it just grids to a halt for weeks. Lots of the weather sayings and poems of the past just don't seem to apply anymore.

Originally Posted by: Devonian 

That is the reason why our weather has generally just become increasingly boring and uninteresting now, and that is why I don’t post anywhere near as often on here now as I used to.


The north of Edinburgh, usually always missing out on snow events which occur not just within the rest of Scotland or the UK, but also within the rest of Edinburgh.

fairweather
25 April 2026 09:38:46

FAX - slack HP drifting SW-wards and allowing fronts to affect NW Scotland to day, but moving back to N Sea off E Scotland 1032mb Wed 29th with E-lies through the Channel and a front lying across N France threatening Cornwall.

GFS Op 0z - the HP above spreads out and weakens. Change comes on Tue 5th with a trough moving across Scotland to Scandinavia with strong N-lies for the east side of Britain Thu 7th. As this system fills, HP nudges towards Ireland from the west, still N-ly regime but lighter and not directly from the Arctic Mon 11th. No sign of significant rain anywhere.

ECM - like GFS but the 'weakens' prediction is more noticeable with Britain in a shallow col for the BH weekend. The col develops into a shallow trough moving slowly eastwards, much as GFS, but importing the cold air more from the NE and winds less strong.

AIFS - London, maxima 20 C to Tue 28th, dipping for a day or two before back to 20C Fri 1st; then progressive decline to 13C Sat 9th, with rain - only a little at first but measurable by the 9th. Edinburgh, maxima variable 12-15C to Sun 3rd, then settling to 10-12C; traces of rain from Fri 1st and quite a lot on Fri 8th

GEFS - mean temp above norm now and from Thu 30th to Tue 5th, then below norm, with moderately good ens agreement. Maybe some very small amounts of rain in the coming week, but rather more likely from Tue 5th, still not particularly heavy.

So maybe the fine weather will just about hang on for the BH weekend, extended by a day or so; good spring weather now but in the long term looking cool with no real sign of summer

Originally Posted by: DEW 

It's April - the last thing we need from the weather right now is an early summer. We need rain !!


S.Essex, 42m ASL
fairweather
25 April 2026 09:42:51
...... and we have to go abroad and put up with comments like "it must be great to get away from all that cold and rain" ! I've been observing the biggest change in weather patterns is, as mentioned above, it is no longer changeable in the short term but "stuck" in blocks of a weather types for about a month of each. Why is that?
S.Essex, 42m ASL
speckledjim
25 April 2026 09:48:17

One high looks like being replaced by another after, possibly, a shower or two. Great if you are a tourist, not great if you farm.

Our weather used to be changeable, now it just grids to a halt for weeks. Lots of the weather sayings and poems of the past just don't seem to apply anymore.

Originally Posted by: Devonian 

That's the meandering jet stream for you. 


Thorner, West Yorkshire



Journalism is organised gossip

The Beast from the East
25 April 2026 10:20:59

It's April - the last thing we need from the weather right now is an early summer. We need rain !!

Originally Posted by: fairweather 

Do we?  Reservoirs and stockpiles seem fine 

After all the rain we had in Jan and Feb,  I am glad for this dry spell.  Farms and gardens can be watered artificially


Purley, Surrey, 70m ASL

"We have some alternative facts for you"

Kelly-Ann Conway - former special adviser to the President

Matty H
25 April 2026 10:28:42

Do we?  Reservoirs and stockpiles seem fine 

After all the rain we had in Jan and Feb,  I am glad for this dry spell.  Farms and gardens can be watered artificially

Originally Posted by: The Beast from the East 

Yeah, we definitely don’t need rain here and didn’t last year either despite how dry it was. No water restrictions here and no one ran out. It was BAU. Long may the dry and warm weather continue 


Yate, Nr Bristol

TBFTEIARBSC

Devonian
25 April 2026 10:50:38

That's the meandering jet stream for you. 

Originally Posted by: speckledjim 

I'm 68, I've been watching the weather for about 60 years and I've seen lots of meandering jet streams. Imo, this isn't meandering, this is conked out.

I think too many people say 'it's due to the jet stream' without being prepared look further to see if there's more to it. Just imo.

Devonian
25 April 2026 10:51:56

...... and we have to go abroad and put up with comments like "it must be great to get away from all that cold and rain" ! I've been observing the biggest change in weather patterns is, as mentioned above, it is no longer changeable in the short term but "stuck" in blocks of a weather types for about a month of each. Why is that?

Originally Posted by: fairweather 

I'm sure you know why.

doctormog
25 April 2026 11:08:33
Off topic so apologies - the MetOffice looked at this issue a few weeks back in the context of the weather patterns in early February. 

https://www.metoffice.gov.uk/blog/2026/met-office-weather-deep-dive-for-february-11 


Chunky Pea
25 April 2026 11:20:07
Couldn't the Winters of 62/63 & 09/10 & 13/14 go down as being 'stuck in a pattern' also? I don't think it is that unusual, which isn't to say that this last winter was stuck in the right way, because it was horrible in everyway. 
Patrick,

East Galway, Ireland.

Chunky Pea
25 April 2026 11:24:33

Yeah, we definitely don’t need rain here and didn’t last year either despite how dry it was. No water restrictions here and no one ran out. It was BAU. Long may the dry and warm weather continue 

Originally Posted by: Matty H 

Not a fan of prolonged dry spells, but I would take one this time around after such a miserable winter & spring.  Just when the place was drying out here over the last few days, it just rained out of the blue last night, undoing the bit of drying we desperately needed.  Not hopeful that any reasonably long dry spell on the cards yet going by the models. This high seems very 'dirty' and easily shifted out of place. 


Patrick,

East Galway, Ireland.

fairweather
25 April 2026 17:34:59

Do we?  Reservoirs and stockpiles seem fine 

After all the rain we had in Jan and Feb,  I am glad for this dry spell.  Farms and gardens can be watered artificially

Originally Posted by: The Beast from the East 

Nope, not in Essex, East Kent and East Anglia and some other parts of Eastern England. Reservoirs down to 70-80% which is very low for April.


S.Essex, 42m ASL
fairweather
25 April 2026 17:46:01
Obviously we all see the weather from our own backyard and viewpoint. It is such a big factor in so many different ways for different people who need different things from it. So we just have to take each other's comments at face value without criticism. Some want dry for outdoor activities (used to be cricket for me and it always rained at the weekend in those days!). Now it's gardening and growing so I need some rain. Others just like being in the hot sun whereas Retron hates it. We all, pretty much like snow, but even that I'm not as sure about as I've got older!

So six weeks with 2.5mm of rain and a cracked lawn in April spells trouble for the driest region in the Country. The NW needs sun after a wet winter I'm sure - that's just the massive variation in our National weather. 😊


S.Essex, 42m ASL
DEW
  • DEW
  • Advanced Member
26 April 2026 07:32:09
FAX - the area of HP remains close to Britain for this week though moving around and allowing cloud to approach from different directions. Today HP  is near NE Scotland and a weak front is over Ireland; tomorrow (Mon) the front has worked round the north of Scotland and is affecting the east coast; on Wed 29th HP has intensified in the northern N Sea and showery troughs are running  W-wards through the Channel, close to Cornwall by Thu 30th.

GFS Op - agrees with FAX, then the disturbance near Cornwall amplifies into a weak trough lying through the Irish Sea and moving slowly E-wards over the BH weekend ( a definite downgrade from yesterday). By Wed 6th this trough has been squeezed down to a col between HP Scandinavia and HP mid-Atlantic. Then as the the former HP moves to Iceland and dominates, a shallow area of LP moves in from the west 990mb W Ireland Sun 10th, filling but still present as a broad trough W-E covering Britain Tue 12th (light NE-lies for N Scotland but nothing like the N-ly gales predicted by this model yesterday).

ECM - like GFS though development is accelerated in a week's time; the 'squeeze' down to a col is already in place by Mon 4th, and the shallow LP is developed 995mb off SW Ireland by Wed 6th.  This area of LP drifts slowly across S Britain to Sat 9th . After that although pressure remains fairly low over Britain, it takes the form of an extension to the LP on the Atlantic, not (as in GFS) an extended trough from Scandinavia westwards.

AIFS - London, maxima ca 20C to Sat 2nd then cooler at 16C to Wed 6th with occasional spits of rain in this period; then a further drop to 13C with heavy rain on Thu 7th. Edinburgh, maxima rather variable, 12-15C to Sat 2nd then 10-12C for the following week; some measurable rain Sun 3rd, small amounts at other times esp later on.

GEFS - mean temp near or a little above norm to Tue 12th, cold outliers incl op and control appear after Sun 3rd and warm outliers in other runs soon after i.e. poor agreement after the first week. Small amounts of rain possible until Mon 3rd, becoming more probable and heavier esp after Thu 7th in N & W.


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

bledur
26 April 2026 08:05:34

I'm sure you know why.

Originally Posted by: Devonian 

Well maybe but then again what would explain the extreme weather patterns around the time of Gilbert White.

In his diaries there are references to extremely dry Springs and early Summers much like now

Also in the works of A.G.Street ,he is often remarking on the lack of Spring rain,he farmed just outside Salisbury.

Devonian
26 April 2026 09:08:25

Well maybe but then again what would explain the extreme weather patterns around the time of Gilbert White.

In his diaries there are references to extremely dry Springs and early Summers much like now

Also in the works of A.G.Street ,he is often remarking on the lack of Spring rain,he farmed just outside Salisbury.

Originally Posted by: bledur 

I'd love to talk about climate but wrong thread?

Brian Gaze
26 April 2026 09:22:00

I'm 68, I've been watching the weather for about 60 years and I've seen lots of meandering jet streams. Imo, this isn't meandering, this is conked out.

I think too many people say 'it's due to the jet stream' without being prepared look further to see if there's more to it. Just imo.

Originally Posted by: Devonian 

I agree 100%. The "jet stream" is now the go to for professional agencies too. However, if you have a sore throat the explanation may be that you've caught a cold, but if you keep catching colds the more important question is why. 


Brian Gaze

Berkhamsted

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speckledjim
26 April 2026 09:55:27

Nope, not in Essex, East Kent and East Anglia and some other parts of Eastern England. Reservoirs down to 70-80% which is very low for April.

Originally Posted by: fairweather 

We're at 98% (end of March). Last year it was 88%


Thorner, West Yorkshire



Journalism is organised gossip

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